ScrapeGraphAI/Scrapegraph-ai · error · ImportError

The langchain_together module is not installed.

Error message

The langchain_together module is not installed.
              Please install it using `pip install langchain-together`.

What it means

ImportError raised when model_provider is 'togetherai' but the langchain_together package is not installed in the environment. ScrapeGraphAI does not bundle every LangChain integration; Together AI support is an optional extra resolved lazily at LLM-creation time.

Source

Thrown at scrapegraphai/graphs/abstract_graph.py:281

                if model_provider == "minimax":
                    return MiniMax(**llm_params)

                if model_provider == "ernie":
                    from langchain_community.chat_models import ErnieBotChat

                    return ErnieBotChat(**llm_params)

                elif model_provider == "oneapi":
                    return OneApi(**llm_params)

                elif model_provider == "xai":
                    return XAI(**llm_params)

                elif model_provider == "togetherai":
                    try:
                        from langchain_together import ChatTogether
                    except ImportError:
                        raise ImportError(
                            """The langchain_together module is not installed.
                                          Please install it using `pip install langchain-together`."""
                        )
                    return ChatTogether(**llm_params)

                elif model_provider == "nvidia":
                    return Nvidia(**llm_params)

        except Exception as e:
            raise Exception(f"Error instancing model: {e}")

    def get_state(self, key=None) -> dict:
        """ ""
        Get the final state of the graph.

        Args:
            key (str, optional): The key of the final state to retrieve.

View on GitHub (pinned to 532dfffbf6)

Solutions

  1. Install the package: pip install langchain-together (or uv add langchain-together / pip install 'scrapegraphai[togetherai]' if the extra exists).
  2. Pin a langchain-together version compatible with your installed langchain-core.
  3. Recreate/refresh the virtual environment and verify with 'python -c "from langchain_together import ChatTogether"'.

Example fix

# before (missing dep)
config = {'llm': {'model_provider': 'togetherai', 'api_key': key}}

# after
# shell: pip install langchain-together
config = {'llm': {'model_provider': 'togetherai', 'api_key': key}}
Defensive patterns

Strategy: validation

Validate before calling

if config['llm'].get('model_provider') == 'togetherai':
    import importlib.util
    if importlib.util.find_spec('langchain_together') is None:
        raise SystemExit('Run: pip install langchain-together')

Type guard

def together_available() -> bool:
    import importlib.util
    return importlib.util.find_spec('langchain_together') is not None

Try / catch

try:
    graph = SmartScraperGraph(prompt=p, config=config)
except ImportError as e:
    if 'langchain_together' in str(e):
        subprocess.check_call([sys.executable, '-m', 'pip', 'install', 'langchain-together'])
        graph = SmartScraperGraph(prompt=p, config=config)
    else:
        raise

Prevention

When it happens

Trigger: config = {'llm': {'model_provider': 'togetherai', 'model': 'mixtral-8x7B-instruct-v0.1', 'api_key': ...}} on an environment where langchain-together is absent. Raised during graph __init__ -> _create_llm.

Common situations: Base install (pip install scrapegraphai) without extras; fresh CI environments; dependency pruning tools removing 'unused' optional packages; version mismatches after upgrading langchain.

Related errors


AI-assisted analysis of ScrapeGraphAI/Scrapegraph-ai@532dfffbf6 (2026-08-28). Data as JSON: /api/errors/76851fa690b2a072. Report an issue: GitHub.